SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1()

in pcre/sljit/sljitNativeARM_32.c [1869:1930]

• 48 lines of code
• 31 McCabe index (conditional complexity)

SLJIT_API_FUNC_ATTRIBUTE sljit_s32 sljit_emit_op1(struct sljit_compiler *compiler, sljit_s32 op,
	sljit_s32 dst, sljit_sw dstw,
	sljit_s32 src, sljit_sw srcw)
{
	CHECK_ERROR();
	CHECK(check_sljit_emit_op1(compiler, op, dst, dstw, src, srcw));
	ADJUST_LOCAL_OFFSET(dst, dstw);
	ADJUST_LOCAL_OFFSET(src, srcw);

	switch (GET_OPCODE(op)) {
	case SLJIT_MOV:
	case SLJIT_MOV_U32:
	case SLJIT_MOV_S32:
	case SLJIT_MOV_P:
		return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);

	case SLJIT_MOV_U8:
		return emit_op(compiler, SLJIT_MOV_U8, ALLOW_ANY_IMM | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);

	case SLJIT_MOV_S8:
		return emit_op(compiler, SLJIT_MOV_S8, ALLOW_ANY_IMM | SIGNED_DATA | BYTE_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);

	case SLJIT_MOV_U16:
		return emit_op(compiler, SLJIT_MOV_U16, ALLOW_ANY_IMM | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);

	case SLJIT_MOV_S16:
		return emit_op(compiler, SLJIT_MOV_S16, ALLOW_ANY_IMM | SIGNED_DATA | HALF_DATA, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);

	case SLJIT_MOVU:
	case SLJIT_MOVU_U32:
	case SLJIT_MOVU_S32:
	case SLJIT_MOVU_P:
		return emit_op(compiler, SLJIT_MOV, ALLOW_ANY_IMM | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, srcw);

	case SLJIT_MOVU_U8:
		return emit_op(compiler, SLJIT_MOV_U8, ALLOW_ANY_IMM | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u8)srcw : srcw);

	case SLJIT_MOVU_S8:
		return emit_op(compiler, SLJIT_MOV_S8, ALLOW_ANY_IMM | SIGNED_DATA | BYTE_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s8)srcw : srcw);

	case SLJIT_MOVU_U16:
		return emit_op(compiler, SLJIT_MOV_U16, ALLOW_ANY_IMM | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_u16)srcw : srcw);

	case SLJIT_MOVU_S16:
		return emit_op(compiler, SLJIT_MOV_S16, ALLOW_ANY_IMM | SIGNED_DATA | HALF_DATA | WRITE_BACK, dst, dstw, TMP_REG1, 0, src, (src & SLJIT_IMM) ? (sljit_s16)srcw : srcw);

	case SLJIT_NOT:
		return emit_op(compiler, op, ALLOW_ANY_IMM, dst, dstw, TMP_REG1, 0, src, srcw);

	case SLJIT_NEG:
#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE) \
			|| (defined SLJIT_ARGUMENT_CHECKS && SLJIT_ARGUMENT_CHECKS)
		compiler->skip_checks = 1;
#endif
		return sljit_emit_op2(compiler, SLJIT_SUB | GET_ALL_FLAGS(op), dst, dstw, SLJIT_IMM, 0, src, srcw);

	case SLJIT_CLZ:
		return emit_op(compiler, op, 0, dst, dstw, TMP_REG1, 0, src, srcw);
	}

	return SLJIT_SUCCESS;
}